GIF to MKV Converter

Convert GIF to MKV Online

Turn an animated GIF into an MKV (Matroska) video and the animation comes across intact — every GIF frame becomes a real video frame, encoded with H.264 (or your choice of codec) instead of GIF's bulky 256-colour LZW. The payoff is dramatic: the same loop drops from megabytes to a fraction of the size, in full colour, wrapped in an open container built for media libraries like Plex, Jellyfin, and VLC. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours — no sign-up, no watermark.

How to Convert GIF to MKV

1. Upload Your GIF File: Drag and drop your animated GIF onto the page, or click "Add Files" to browse. You can queue several GIFs and convert them with the same settings.
2. Pick a Video Codec: Open Advanced Options. The default for MKV is H.264 (broadest player support). For a smaller file at the same quality, switch the Video Codec to H.265 or VP9; for the newest codec, choose AV1.
3. Set the Quality Preset (Optional): Leave Quality Preset on "Very High (Recommended)" for a near-lossless result, or step down to High or Medium to shrink the file further. You can also cap the output with the Video resolution control.
4. Convert and Download: Click Convert and save your MKV. No sign-up, no watermark.

GIF vs MKV at a Glance

MKV is a desktop and media-server container, not a web-embed format. If you need a loop that plays inline on a website or in any browser, convert the GIF to MP4 instead — same size savings, far wider playback support.

Frequently Asked Questions

Does converting GIF to MKV keep the animation?

Yes. An animated GIF is a sequence of frames, and each one becomes a video frame in the MKV. The motion plays back exactly as the GIF did. A single still GIF simply produces a one-frame video.

Why is the MKV so much smaller than the GIF?

GIF compresses each frame on its own and is limited to 256 colours, so even short loops balloon to several megabytes. Video codecs inside MKV — H.264, H.265, VP9 — store only what changes between frames and use far smarter compression. In our testing, a multi-megabyte animated GIF routinely re-encodes to well under 1 MB as an H.264 MKV with no visible quality loss, while gaining full colour.

Will the GIF's frame timing and speed be preserved?

Yes. The converter reads the per-frame delays written into the GIF and reproduces that timing in the MKV, so the playback speed matches the original loop rather than being forced to a fixed frame rate.

Should I use MKV, or is MP4 or WebM a better target?

Choose MKV when the file is headed for a local media library or a player like VLC, Plex, or Jellyfin, or when you want an open, flexible container. For anything that needs to play in a browser or on a phone, pick GIF to MP4 — Safari and older Firefox builds do not play MKV natively, whereas MP4 plays nearly everywhere.

Can I convert the MKV back into a GIF later?

Yes. Our MKV to GIF converter reverses the process, sampling the video back into an animated GIF when you need the loop in GIF form again — useful for chat apps or email that only accept GIF.